CHICKEN BODY TEMPERATURE AND BEHAVIOR

Question 1

• Normal body temperature is ___°F to___°F or ___ °C to __°C but in some
  instances varies depending on the breed.

Answer 1

• Normal body temperature is 105 to 107°F or 41 to 42°C but in some
  instances varies depending on the breed.

Question 2

A breed that is more tolerant to heat than other breeds.

Answer 2

Leghorns

Question 3

• Chickens will stand temperatures up to _____°F at a relative
  humidity of___%. Most of the heat loss is by respiration
  and birds will pant when the temperature is too high.

Answer 3

• Chickens will stand temperatures up to 100°F at a relative
  humidity of 65%. Most of the heat loss is by respiration
  and birds will pant when the temperature is too high.

Question 4

However under extreme circumstances (lower, higher)
energy requirement for maintenance is necessary
since birds have lowered their feed intake at (higher,lower)
temperature.

Answer 4

*However under extreme circumstances lower
energy requirement for maintenance is necessary
since birds have lowered their feed intake at higher
temperature.

Question 5

Energy requirement is dependent on ambient
temperature:
* WL → ___ kcal/°C/kg/d
*Medium heavy breeds →___ kcal/°C/kg/d.

Answer 5

Energy requirement is dependent on ambient
temperature:
* WL → 2.2 kcal/°C/kg/d
*Medium heavy breeds → 2.0 kcal/°C/kg/d.

Question 5

• Laying hens for example have a metabolizable
  energy intake of approximately ____to ___ KJ (or
  300 to 373 kcal) at ___°C, depending mainly on their
  body size and rate of production, but at high
  temperatures they reduce their feed intake by
  approximately ___% for each centigrade temperature
  rise.

Answer 5

• Laying hens for example have a metabolizable
  energy intake of approximately 1300 to 1600 KJ (or
  300 to 373 kcal) at 20°C, depending mainly on their
  body size and rate of production, but at high
  temperatures they reduce their feed intake by
  approximately 1.5% for each centigrade temperature
  rise.

Question 6

is it (true,false) that Chickens have a well-developed social order (peck order) and
birds at the bottom may become culls if there is insufficient feed
or water space.

Answer 6

TRUE